JP2006137467A - Packaging box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging box with improved unsealability and high pressure resistance to be capable of stacking when unsealed. <P>SOLUTION: The packaging box includes a pair of first and second end walls 10A and 10B and first and second sidewalls 11A and 11B. First and second inner flaps 14A and 14B are connected with the upper end of the respective end walls 10A and 10B. First and second outer flaps 15A and 15B are connected with the upper end of the respective first and second sidewalls 11A and 11B. A tearing means 18 extending from the first sidewall 10A to the tip of the first outer flap 15A is provided. A first breaking rim 18a positioned on the side of the first end wall 10A torn by the tearing means 18 is located on the side of the first end wall 11A connected from the tip of the first inner flap 14A while assembled. A notch 25 capable of holding a second breaking rim 18b opposite to the first rim 18a on the first outer flap 15A is provided on the first inner flap 14A. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a packaging box for packaging a predetermined product, and particularly improves the opening workability.

  This type of packaging box includes a pair of end walls and side walls that surround four sides. Inner flaps are connected to upper and lower end edges of the end walls, and outer flaps are connected to upper and lower end edges of the side walls. It is installed. The upper and lower end openings of the peripheral wall including the end wall and the side wall are formed by bending a pair of inner flaps inward with respect to the end wall, and then bending the outer flap inward so as to overlap the upper side. It is sealed by sticking the tip portion where the flaps are abutted with an adhesive tape.

  In this type of packaging box, prior art document information related to the packaging box of the present invention configured to improve the opening workability includes the following.

Japanese Utility Model Publication No. 5-2439

  In this Patent Document 1, a cut line having a substantially U shape is provided at the upper center of the end wall, thereby forming a tongue piece within the cut line and pushing the wall around the cut line so as to compress the wall thickness. A packaging box with a crushed recess is described. And when sealing an upper end opening with an adhesive tape, the edge part of the adhesive tape is located on the said tongue piece. Moreover, when opening, it is configured so that the opening workability can be improved by pressing the recess inward to grip the end of the tongue piece and peeling the adhesive tape together. Yes.

  The structure of this Patent Document 1 has good opening workability and is not problematic. However, if it is tough, since a portion peeled off from the corrugated cardboard constituting the packaging box is generated, the pressure resistance is lowered. Therefore, the strength is insufficient to stack other packaging boxes in this opened state.

  It is an object of the present invention to provide a packaging box with high pressure resistance that improves the opening workability and can be stacked in an opened state.

  In order to solve the above problems, the packaging box of the present invention includes a pair of first and second end walls and first and second side walls, respectively, and first and second inner flaps at the upper ends of the end walls. In the packaging box in which the first and second outer flaps are continuously provided at the upper ends of the first and second side walls, the breaker is provided to extend from the first side wall to the tip of the first outer flap. At least a first breaking edge located on the side of the first end wall broken by the breaking means is located on the side of the first end wall continuous from the tip of the first inner flap in the assembled state, and the first inner wall The flap is provided with a notch portion that can grip the second fracture edge opposite to the first fracture edge in the first outer flap.

In this packaging box, it is preferable that the breaking means includes a pair of cutting lines provided intermittently so as to form a perforation, and is provided from each side wall to the tip of each outer flap.
In this case, it is preferable to provide a notch located between the cutting lines at the tip of the outer flap.

  In the packaging box according to the present invention, the breaking means extending from the first side wall to the tip of the first outer flap is provided. Therefore, the first outer flap is broken by breaking the first side wall and the first outer flap by the breaking means. It is possible to partially break the sealing tape for sealing located at the tip of the. The first breaking edge broken by the breaking means is located on the continuous first end wall side from the front end of the first inner flap located on the lower side, while the first inner flap has a second Since the notch part which can hold | grip a fracture | rupture edge is provided, the said adhesive tape can be fractured | ruptured and a packaging box can be opened by grasping this 2nd fracture | rupture edge and pulling up a 1st outer flap. In this opened state, the remaining portion of the first outer flap is only a small area located on the first inner flap, and most of the area is opened. Does not interfere with sex. In addition, the presence of the residual portion can ensure the pressure strength in the vertical direction, and can be stacked in the opened state.

  Moreover, since the said breaking means consists of a perforated cutting line and is provided from both side walls to the outer flap, each user can open it as desired, and the diversity related to the opening method can be improved. . In addition, since the notch located between the cutting lines is provided at the tip of the outer flap, after the first side wall and the first outer flap are broken by one breaking means, the second outer flap is broken by the other breaking means. When it is going to break from the front end side, it is possible to easily determine the gripping position and to prevent the paper constituting the packaging box from being torn.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 to 4 show a packaging box according to an embodiment of the present invention. This packaging box includes a peripheral wall composed of a pair of end walls 10A, 10B and side walls 11A, 11B surrounding four sides, and upper flaps 14A, 14B, 15A, 15B at the upper end edges of the walls 10A, 10B, 11A, 11B. And lower side flaps 16A to 16D are continuously connected to the lower edge, and the side walls 11A and 11B and the upper outer flaps 15A and 15B are provided with breaking means 18 for opening operation. It is.

  Specifically, in this packaging box, a well-known corrugated cardboard paper in which a corrugated shin is arranged between the cover and the back paper is obtained by using a well-known paper container punching device (not shown) as shown in FIG. A blank is punched out, and a predetermined portion is pasted by gluing.

  As shown in FIG. 4, the packaging box blank is provided such that the end walls 10 </ b> A and 10 </ b> B and the side walls 11 </ b> A and 11 </ b> B are alternately and linearly continuous. Among these, the margin part 12 for adhering to the 2nd end wall 10B located in a left side edge part is connected with the edge of the 1st side wall 11A located in a right side edge part. In each of the boundary portions of the end walls 10A and 10B, the side walls 11A and 11B, and the adhesive margin 12, a folding line 13 is provided which is formed with a ruled line so as to compress the thickness.

  Upper inner flaps 14A and 14B are connected to upper end edges of the end walls 10A and 10B, and upper outer flaps 15A and 15B are connected to upper end edges of the side walls 11A and 11B. Further, lower flaps 16A to 16D are connected to the lower end edges of the walls 10A, 10B, 11A, and 11B. A folding line 17 similar to that described above is provided between each of the flaps and each of the continuous walls 10A, 10B, 11A, and 11B.

  Among them, the side walls 11A, 11B and the upper outer flaps 15A, 15B are provided with breaking means 18 extending in the vertical direction from the substantially central portion of the side walls 11A, 11B to the tips of the upper outer flaps 15A, 15B. The breaking means 18 includes a cutting line 19 that is intermittently provided so as to form a substantially inverted U shape at a substantially center in the vertical direction of the side walls 11A and 11B, and parallel to the vertical direction from both sides above the cutting line 19. And a pair of cutting lines 20A and 20B provided intermittently so as to form a perforation. A folding line 21 extending in the lateral direction is provided between both ends of the cutting line 19. As a result, a pointing portion 22 serving as a break start position is formed in the inside surrounded by the cutting line 19 and the folding line 21. In addition, a separation portion 23 that is separated by breakage is formed in the inside surrounded by the cutting lines 19, 20 </ b> A, 20 </ b> B and the outer edge of the upper outer flap 15. Further, the upper outer flaps 15A and 15B are formed with cutout portions 24 cut out in an arc shape between the cutting lines 20A and 20B.

  And in this embodiment, each said fracture | rupture means 18 and 18 is located in the side of the continuous end wall 10A rather than the front-end | tip of the upper inner flap 14A in which a pair of cutting line 20A, 20B is located in the lower side in an assembly state. And it is provided so that it may mutually be located linearly in the vertical direction. Further, the first upper inner flap 14A located below the breaking means 18, 18 is provided with a cutout portion 25 cut out in a substantially semicircular shape. The notch 25 has a top portion located closest to the first end wall 10 </ b> A beyond the first breaking edge 18 a on the side of the end wall 10 </ b> A formed by breaking the breaking means 18, 18. It is the size to be located. Thereby, when the user inserts a hand into the notch 25, the second broken edge 18b formed on the side opposite to the first broken edge 18a can be gripped.

  As for the lower flaps 16A to 16D, which are assembled by meshing, a first lower flap 16C that is bent first is connected to the side wall 11B, and a pair of second lower flaps 16B and 16D that are bent second are opposed to each other. A third lower flap 16A that is connected to the end walls 10A and 10B and that is bent at the end is connected to the side wall 11A. The first and third lower flaps 16C and 16A are formed in such a size that their leading edges overlap in an assembled state. And the notch part 26 notched in the concave shape is provided in the center of the 1st lower side flap 16C. In addition, the second lower flaps 16B and 16D are formed with oblique sides 27 that are inclined toward the corners of the notches 26 in the first lower flap 16C in the assembled state. Further, both ends of the third lower flap 16A are cut out so that an engagement protrusion 28 located in the cutout portion 26 of the first lower flap 16C is projected.

  In the packaging box configured as described above, the lower flaps 16A to 16D are bent in the first to third order, and the engagement protrusions 28 of the third lower flap 16A are passed through the cutout portion 26 to form the first lower flap. By engaging the inside of 16C, the bottom opening is closed as shown in FIG. In this state, a predetermined product is accommodated inside the opened upper end opening, the upper inner flaps 14A and 14B are folded inward, and then the upper outer flaps 15A and 15B are folded inward and joined together. The front ends of the flaps 15A and 15B are sealed by sticking with the adhesive tape 29 over the end walls 10A and 10B at both ends.

  When opening the sealed packaging box, for example, as shown in FIG. 3 (A), the finger is pressed against the finger 22 on the side wall 11A and is broken along the cutting line 19. The pointing portion 22 is bent inward. Next, the exposed edge of the separation part 23 is grasped with a finger, and as shown in FIG. 3B, the separation part 23 is pulled outwardly, thereby extending the side wall 11A and the upper outer side along the cutting lines 20A and 20B. Flap 15A is broken. At this time, the adhesive tape 29 attached to the tip edge of the upper outer flap 15A is partially broken together. The breaking action of the adhesive tape 29 varies depending on the type of the adhesive tape 29 to be used. However, in the case of using a base material having a fibrous member extending vertically and horizontally, the separating portion 23 as shown in the figure. It is often broken along the shape.

  Thereafter, the finger 22 of the side wall 11B is pressed in the same manner, and the end of the exposed separation part 23 is gripped and pulled to partially break the side wall 11B on the opposite side and the upper outer flap 15B. Next, a hand is inserted into the notch 25 of the exposed inner upper flap 14A, and the second fractured edges 18b and 18b on the second end wall 10B side formed by the fracture are gripped and spread outward. As a result, the packaging box is opened as shown in FIG.

  Thus, in the packaging box of this embodiment, since the breaking means 18 extended from the side walls 11A and 11B to the tips of the upper outer flaps 15A and 15B is provided, the upper outer flap is used without using a cutting tool such as a cutter. The adhesive tape 29 attached with 15A and 15B can be easily broken together. The breaking means 18 is provided so as to be biased toward one upper inner flap 14A, and the upper adhesive flap 29A is provided with a notch portion 25 that can grip the second breaking edge 18b. The remaining upper outer flaps 15A and 15B located on the second end wall 10B side can be easily opened while breaking the.

  And in this opened state, the remaining portion that remains in the state where the upper end opening of the packaging box is closed is only a small area located on the upper inner flap 14A, and most of the area is opened, This does not hinder the workability of taking out the goods contained in the container. In addition, the presence or absence of the residual portion can ensure the vertical strength. As a result, it is possible to stack other packaging boxes in the opened state on information.

  Moreover, if the lower flaps 16A to 16D do not have a meshing assembly structure as in the present embodiment, but have a known assembly structure with an inner flap and an outer flap, the blank shape is simplified, so that the equipment cost is high. It becomes possible to manufacture with a general-purpose processing machine such as a flexogluer using a partial mold for forming the breaking means 18 instead of a cutter. Of course, it does not depend on the height of the peripheral wall constituting the packaging box.

  Moreover, in the packaging box of this embodiment, since the breaking means 18 and 18 are provided from both the side walls 11A and 11B to the upper outer flaps 15A and 15B, each user can open it as desired. Specifically, in the state shown in FIG. 3B, when the side wall 11B and the upper outer flap 15B are broken by the breaking means 18, the tip of the exposed separation portion 23 of the upper outer flap 15B is gripped. The upper outer flap 15B can also be broken. Therefore, the diversity concerning the opening method can be improved. When such an unsealing method is adopted, the notch portion 24 located between the cutting lines 20A and 20B is provided at the tips of the upper outer flaps 15A and 15B. It is also possible to suppress tearing of the paper cover.

  In addition, the packaging box of this invention is not limited to the structure of the said embodiment, A various change is possible.

  For example, in the above embodiment, the breaking means 18 and 18 are provided from both the side walls 11A and 11B to the upper outer flaps 15A and 15B, but the breaking means 18 may be provided only on one side. In the above embodiment, the breaking means 18 is provided so that both the breaking edges 18a and 18b are located on the side of the end wall 10A from the tip of the upper inner flap 14A. However, only one breaking edge 18a may be provided. . Further, the breaking means 18 may be configured to attach a separation band made of a resin tape to the backing paper of the corrugated paper instead of the pair of cutting lines 20A and 20B and to break the corrugated paper so as to tear it. Moreover, it is good also as a structure which does not provide the notch part 24 formed in upper outer flap 15A, 15B. Furthermore, the shape of the notch 25 can be changed as desired. And in the said embodiment, although the packaging box was formed in planar view square shape, this packaging box is octagonal shape in planar view which provided the chamfering wall between adjacent end wall 10A, 10B and side wall 11A, 11B. It is good.

It is a perspective view which shows the packaging box which concerns on embodiment of this invention. It is a perspective view which shows the state which obstruct | occluded only the lower end opening. (A), (B), (C) is a perspective view which shows an example of an opening process. It is a top view which shows the blank of a packaging box.

Explanation of symbols

10A, 10B ... end walls 11A, 11B ... side walls 14A, 14B ... upper inner flaps 15A, 15B ... upper outer flaps 16A-16D ... lower flaps 18 ... breaking means 18a, 18b ... breaking edges 19 ... cutting lines 20A, 20B ... Cutting line 22 ... pointing part 23 ... separation part 24 ... notch part 25 ... notch part

Claims (3)

A pair of first and second end walls and first and second side walls are provided, and first and second inner flaps are connected to upper ends of the end walls, respectively, and upper ends of the first and second side walls. In the packaging box in which the first and second outer flaps are connected to each other,
Breaking means extending from the first side wall to the tip of the first outer flap is provided, and at least a first break edge located on the side of the first end wall broken by the breaking means is in an assembled state of the first inner flap. Located on the side of the first end wall that is continuous from the tip,
A packaging box, wherein the first inner flap is provided with a notch portion capable of gripping a second breaking edge opposite to the first breaking edge in the first outer flap.   The said breaking means consists of a pair of cutting lines provided intermittently so as to form a perforation, and is provided from the respective side walls to the tips of the respective outer flaps, respectively. Packaging box.   The packaging box according to claim 2, wherein a cutout portion located between the cutting lines is provided at a tip of the outer flap.

Images